gräfix 418
Monodrän binder
The special binder (based on trass powder, cement and other additives) reliably prevents capillary water rise whilst allowing water to pass through. When mixed with aggregate (4/8 or 5/8), gräfix 418 can be used outdoors as a drainage layer. Indoors, the coarse-grained mortar can be used as a load-distribution layer beneath a wide variety of floor coverings to achieve shorter construction times through faster drying.
Coverage: at a ratio of 1 : 5 by volume = approx. 105 l
Single-grain mortar with 1 bag
at a ratio of 1 : 6 by volume = approx. 125 l
Single-grain mortar with 1 bag
Delivery: 25 kg per bag
1.05 tonnes per pallet
A high-quality specialised binder for the production of water-permeable and capillary-breaking Einkorn mortars.
- Reliably prevents water damage and fabric deterioration
- Easy to work with
- Extremely permeable
- Very low emissions – EMICODE EC1 PLUS
Laying natural stone or ceramic tiles on Monodrän single-grain mortar in outdoor areas
Natural stone used in outdoor areas must be frost-resistant and stain-resistant. Therefore, only dense natural stone paving, such as granite or quartzite, is suitable for this application. When laying natural stone and ceramic slabs in drainage mortar, a bonding agent is required to ensure adhesion to the single-grain mortar.
Apply Monodrän single-grain mortar
Mix gräfix 418 Monodrän binder for single-grain mortar with water and 4/8 or 5/8 grit to form a workable paste, then apply it with a trowel to the sub-base (screed, concrete, insulation or crushed stone base course) using a trowel and smooth it off relatively evenly.
Apply a bonding layer
, e.g. gräfix 34 fine for natural stone or gräfix 3423 fine for ceramic tiles
Apply to the back of the tiles using a 10-tooth or larger notched trowel to ensure the deepest possible bond with the single-grain mortar.
Laying the tiles
Place the tiles ‘wet-on-wet’ into the mortar bed and tap them into place.
Grouting
Once the laying mortar has set, grout the surface using a cement-based gräfix tile and natural stone flex grout or a gräfix natural stone drainage and paving grout.
